carbon-components/es/components/ui-shell/product-switcher.js

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import NavigationMenuPanel from './navigation-menu-panel';
import on from '../../globals/js/misc/on';
import settings from '../../globals/js/settings';
import onFocusOutByKeyboard from '../../globals/js/misc/on-focus-by-keyboard';

var ProductSwitcher =
/*#__PURE__*/
function (_NavigationMenuPanel) {
  _inherits(ProductSwitcher, _NavigationMenuPanel);
  /**
   * A navigation menu
   * @extends NavigationMenuPanel
   * @param {HTMLElement} element The element working as a selector.
   * @param {Object} [options] The component options.
   * @param {string} [options.selectorInit] The CSS class to find product
   * switchers
   * @param {string} [options.attribInitTarget] The attribute name in the
   * launcher buttons to find target product switcher
   * @param {string} [options.classProductSwitcherExpanded] The CSS class
   * for an expanded product switcher
   */


  function ProductSwitcher(element, options) {
    var _this;

    _classCallCheck(this, ProductSwitcher);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(ProductSwitcher).call(this, element, options));
    _this.current = '';
    _this.triggerButtonIds = new Set();

    _this._handleFocusOut = function (event) {
      if (_this.element.contains(event.relatedTarget)) {
        return;
      }

      var currentTriggerButton = _this.element.ownerDocument.getElementById(_this.current);

      if (currentTriggerButton && event.relatedTarget && !event.relatedTarget.matches(_this.options.selectorFloatingMenus)) {
        currentTriggerButton.focus();
      }
    };

    _this._handleKeyDown = function (event) {
      var isExpanded = !_this.element.hasAttribute('hidden');

      if (event.which === 27 && isExpanded) {
        var triggerButton = _this.current;

        _this.changeState(_this.constructor.SELECT_NONE);

        _this.element.ownerDocument.getElementById(triggerButton).focus();
      }
    };

    _this.createdByLauncher = function (event) {
      var isExpanded = _this.element.classList.contains(_this.options.classProductSwitcherExpanded);

      var launcher = event.delegateTarget;

      if (!launcher.id) {
        launcher.id = "__carbon-product-switcher-launcher-".concat(Math.random().toString(36).substr(2));
      }

      var current = launcher.id;

      _this.changeState(isExpanded && _this.current === current ? _this.constructor.SELECT_NONE : current);
    };

    _this.shouldStateBeChanged = function (current) {
      return _this.current !== current;
    };

    _this._changeState = function (state, callback) {
      _this.element.classList.toggle(_this.options.classProductSwitcherExpanded, state !== _this.constructor.SELECT_NONE);

      _this.current = state;

      if (_this.current !== _this.constructor.SELECT_NONE) {
        _this.triggerButtonIds.add(_this.current);
      } // deactivate all other trigger buttons


      _this.triggerButtonIds.forEach(function (id) {
        var button = _this.element.ownerDocument.getElementById(id);

        var label = button.getAttribute(_this.options.attribLabelExpand);
        button.classList.remove(_this.options.classNavigationMenuPanelHeaderActionActive);
        button.setAttribute('aria-label', label);
        button.setAttribute('title', label);
      }); // set active trigger button attributes


      var currentTriggerButton = _this.element.ownerDocument.getElementById(_this.current);

      if (currentTriggerButton) {
        var label = currentTriggerButton.getAttribute(_this.options.attribLabelCollapse);
        currentTriggerButton.classList.toggle(_this.options.classNavigationMenuPanelHeaderActionActive);
        currentTriggerButton.setAttribute('aria-label', label);
        currentTriggerButton.setAttribute('title', label);
      }

      if (state !== _this.constructor.SELECT_NONE) {
        _this.element.setAttribute('tabindex', '0');

        _this.element.focus();
      } else {
        _this.element.setAttribute('tabindex', '-1');
      }

      callback();
    };

    _this.manage(on(element, 'keydown', _this._handleKeyDown));

    _this.manage(onFocusOutByKeyboard(element, 'blur', _this._handleFocusOut));

    return _this;
  }
  /**
   * id of currently active trigger button
   * @type {string}
   */


  _createClass(ProductSwitcher, [{
    key: "release",
    value: function release() {
      this.triggerButtonIds.clear();
      return _get(_getPrototypeOf(ProductSwitcher.prototype), "release", this).call(this);
    }
    /**
     * The map associating DOM element and ProductSwitcher instance.
     * @member ProductSwitcher.components
     * @type {WeakMap}
     */

  }], [{
    key: "options",

    /**
     * The component options.
     * If `options` is specified in the constructor,
     * {@linkcode ProductSwitcher.create .create()}, or
     * {@linkcode ProductSwitcher.init .init()},
     * properties in this object are overriden for the instance being create and
     * how {@linkcode ProductSwitcher.init .init()} works.
     * @member ProductSwitcher.options
     * @type {Object}
     * @property {string} selectorInit The CSS class to find popup navs.
     * @property {string} attribInitTarget The attribute name in the
     * launcher buttons to find target popup nav.
     * @property {string[]} initEventNames The events that the component
     * will handles
     */
    get: function get() {
      var prefix = settings.prefix;
      return Object.assign(Object.create(NavigationMenuPanel.options), {
        selectorInit: '[data-product-switcher]',
        selectorFloatingMenus: "\n        .".concat(prefix, "--overflow-menu-options,\n        .").concat(prefix, "--overflow-menu-options *,\n        .").concat(prefix, "--tooltip,\n        .").concat(prefix, "--tooltip *,\n        .flatpicker-calendar,\n        .flatpicker-calendar *\n        "),
        attribInitTarget: 'data-product-switcher-target',
        classProductSwitcherExpanded: "".concat(prefix, "--panel--expanded")
      });
    }
  }]);

  ProductSwitcher.SELECT_NONE = '__carbon-product-switcher-launcher-NONE';
  ProductSwitcher.components = new WeakMap();
  return ProductSwitcher;
}(NavigationMenuPanel);

export { ProductSwitcher as default };